I got two Grados in my place this week. An Alessandro MS2 (but with recently replaced MS2i drivers and 8 strand cable) and an older Grado SR225. driving everything from the HA160D.
I’ve never had these both in the house at the same time. (or a 325 and 225 at the same time).
First up, I love the old look of the MS2 cups. I really prefer the flat look compared to the mushroom cups.
In terms of sound, the MS2 sounds bigger and fuller than the 225. slightly larger soundstage. slightly more mid bass and lower mids warmth on the MS2. All comes together to make the MS2 sound a bit more “live”. And although there is a little shout in the upper mids with both, the MS2 seems a little bit more mellow in this area so it’s just right for me.
I was not a fan of the SR325 as it was the most aggressive Grado I had heard but the MS2 provides a great balance for my ears. And, at 300 bucks (or ~200 used), it’s got one of the better price/performance ratios in the Grado lineup. Very happy with it.
As for the SR225 I think I’ll keep them as a bedroom nightstand headphone.
Here’s a pic of the new MS2 from the person who sold them to me.